phd writes:
"Are we going to see police officers in the future asking pilots questions such as 'is this your aeroplane sir/madam? or 'please can you blow into this bag sir/madam?'"
After what I have seen in the news lately, I can only say that We in the aviation industry have brought it upon ourselves. Even though its a small percentage in relation to other jobs, when Airline Pilots get tested and blow twice the legal limit for a DUI, AFTER they have flown, its no surprise.
Im sure, as with DUI, they will have to have some probable cause. If not I think I would tell them to pound sand.